Reduce views::Border creation verbosity by promoting factory functions

ash/common/system/date/date_view.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/common/system/date/date_view.h"
 
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/system/tray/system_tray_controller.h"
 #include "ash/common/system/tray/tray_constants.h"
 #include "ash/common/system/tray/tray_popup_item_style.h"
@@ skipping 354 matching lines @@
                               : kTrayLabelItemVerticalPaddingVerticalAlignment);
   }
   Layout();
 }
 
 void TimeView::SetBorderFromLayout(ClockLayout clock_layout) {
   if (MaterialDesignController::IsShelfMaterial())
     return;
 
   if (clock_layout == ClockLayout::HORIZONTAL_CLOCK) {
-    SetBorder(views::Border::CreateEmptyBorder(
+    SetBorder(views::CreateEmptyBorder(
         0, kTrayLabelItemHorizontalPaddingBottomAlignment, 0,
         kTrayLabelItemHorizontalPaddingBottomAlignment));
   } else {
-    SetBorder(views::Border::NullBorder());
+    SetBorder(views::NullBorder());
   }
 }
 
 void TimeView::SetupLabels() {
   horizontal_label_.reset(new views::Label());
   SetupLabel(horizontal_label_.get());
   vertical_label_hours_.reset(new views::Label());
   SetupLabel(vertical_label_hours_.get());
   vertical_label_minutes_.reset(new views::Label());
   SetupLabel(vertical_label_minutes_.get());
   // TODO(estade): this should use the NativeTheme's secondary text color.
   vertical_label_minutes_->SetEnabledColor(kVerticalClockMinuteColor);
   // Pull the minutes up closer to the hours by using a negative top border.
-  vertical_label_minutes_->SetBorder(views::Border::CreateEmptyBorder(
-      MaterialDesignController::IsShelfMaterial()
-          ? kVerticalClockMinutesTopOffsetMD
-          : kVerticalClockMinutesTopOffset,
-      0, 0, 0));
+  vertical_label_minutes_->SetBorder(
+      views::CreateEmptyBorder(MaterialDesignController::IsShelfMaterial()
+                                   ? kVerticalClockMinutesTopOffsetMD
+                                   : kVerticalClockMinutesTopOffset,
+                               0, 0, 0));
 }
 
 void TimeView::SetupLabel(views::Label* label) {
   label->set_owned_by_client();
   SetupLabelForTray(label);
   label->SetElideBehavior(gfx::NO_ELIDE);
 }
 
 }  // namespace tray
 }  // namespace ash